Best Time to Fly MDW to MYR: On-Time Stats by Hour & Airline
Chicago Midway International → Myrtle Beach International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 76.2% of Chicago (MDW) to Myrtle Beach (MYR) flights arrived on time (333 scheduled flights). That is 1.4 points below the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
January has been the best month (88% on time) and Thursday the weakest day of the week (70%).
1.5% of flights were cancelled, versus 1.8% nationally.
MDW to MYR on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlines | 76.2% | 56 min | 1.5% | 333 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MDW to MYR
On-time arrival % by scheduled departure hour (local time), 777 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 26 | |
| 8am–9am | 90.7% | 1.0% | 98 |
| 9am–10am | Limited data | 11 | |
| 11am–12pm | 93.9% | 0.0% | 33 |
| 12pm–1pm | Limited data | 11 | |
| 1pm–2pm | Limited data | 13 | |
| 2pm–3pm | 81.0% | 4.0% | 99 |
| 3pm–4pm | 83.6% | 2.7% | 75 |
| 4pm–5pm | 73.6% | 0.0% | 91 |
| 5pm–6pm | 73.5% | 5.6% | 36 |
| 6pm–7pm | 77.1% | 0.0% | 118 |
| 7pm–8pm | 46.5% | 3.3% | 60 |
| 8pm–9pm | 62.6% | 0.0% | 99 |
| 9pm–10pm | Limited data | 7 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MDW to MYR
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 13 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 76.7% | -3.1 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 66.5% | -13.3 pts | 2.0% | 204 |
| All other days | 79.8% | — | 1.1% | 530 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).